Grains, legumes and seeds are typical sources of plant protein in powders, which are made by removing most of the fat and carbs while isolating the protein components. Common vegan protein powders are pea, hemp, brown rice and soy.
Why is protein an important part of the vegan/vegetarian diet?
Protein is an essential component of a healthy diet, but getting enough protein in your diet can be a concern for vegans. Because the vegan diet doesn’t include beef, chicken, fish, eggs, or other animal-based foods that are high in protein, it is often necessary for vegans to augment their diet with a protein powder and other supplements such as vitamin B12.